Real-world power grids are complex, interconnected, and inherently non-linear, with operating conditions that are continuously influenced by fluctuating loads, distributed generation, and network-level disturbances. As a result, voltage, frequency, unbalance, and transient abnormalities are unavoidable in practical grid operation.

For manufacturers of grid-connected equipment, validating grid adaptability during the R&D phase cannot rely on direct access to live utility grids, which are often impractical, unsafe, and non-repeatable for systematic testing. Grid simulation therefore becomes essential, providing a controlled and repeatable environment to reproduce critical grid conditions and verify grid connectivity, robustness, and compliance before field deployment.